I have one too. He is only about 2 inches right now. I don't see him at all, he is always hiding and never comes out during feeding time [he lives with plecos and discus] so i don't know what he lives on to survive. he RARELY ever comes out, maybe once every 3 months??? They're such mystery, shy fish that sometimes i forget that i even have one! He doesn't swim too, i'm sure he CAN but most of the time he pretends to be a dead leaf sleeping at the bottom under the wood. He doesn't bother any of my other fishes and none of them bothers him either. ^^